From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8A34E156898 for ; Wed, 24 Jul 2024 17:00:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721840441; cv=none; b=hP+P+kOe/ZqjbCTN03/6JBAShoP5TfXB0eebGeTy+ZQj2NkacnFBfYt04MzieiX5bJwz8fYkEKHx9lXx0QKFoTqRZiBFpSx9y/9+3HoRDuBfOOALvsJ1FdKRE983IJ2hSXjiJ40CsaRdV/o2aqmGrSYk77QxTMMYvdL1tN9hK1o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721840441; c=relaxed/simple; bh=EGDjCKS8TTdOS6u49eZnJylffVX5QQYdVFkyWpn+h0c=; h=Date:To:From:Subject:Message-Id; b=fUNVn4vehALzkopONWf8+ITK6uC4gJyQLhV3iqvg++Yr4lKGaI4ejQXip+EJnJVKmxUpf/mUCFuqSP6cLrPq1O2Y59lN61twWZSwsDRat2pZ43yC6bVKGHdlD+Tsg3W46Ww7mc1eU+H9wzShBiGMBeZfwVK6xbh1ENk2+lIFBaE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=bS/GlHwo; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="bS/GlHwo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 15595C32781; Wed, 24 Jul 2024 17:00:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1721840441; bh=EGDjCKS8TTdOS6u49eZnJylffVX5QQYdVFkyWpn+h0c=; h=Date:To:From:Subject:From; b=bS/GlHwoz5nSpHLo/q34pNq2FOK3Ibk8G/K41j8GMdajkAbHkSzu5Fp9Y3X3Jhuiv Xr/Fp7hwbXvsXTROz/DRJUhrwgzY9G1Kuh55SsdpjrkvW9pQAFiVyYGSHyqKjs9KqV gGNFRgO1sP/U0+AIF+ICrXSijml9sV8voLzAhzpM= Date: Wed, 24 Jul 2024 10:00:40 -0700 To: mm-commits@vger.kernel.org,ying.huang@intel.com,wangkefeng.wang@huawei.com,lorenzo.stoakes@oracle.com,david@redhat.com,baolin.wang@linux.alibaba.com,ziy@nvidia.com,akpm@linux-foundation.org From: Andrew Morton Subject: + memory-tiering-count-pgpromote_success-when-mem-tiering-is-enabled.patch added to mm-unstable branch Message-Id: <20240724170041.15595C32781@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: memory tiering: count PGPROMOTE_SUCCESS when mem tiering is enabled. has been added to the -mm mm-unstable branch. Its filename is memory-tiering-count-pgpromote_success-when-mem-tiering-is-enabled.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/memory-tiering-count-pgpromote_success-when-mem-tiering-is-enabled.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Zi Yan Subject: memory tiering: count PGPROMOTE_SUCCESS when mem tiering is enabled. Date: Wed, 24 Jul 2024 09:01:15 -0400 memory tiering can be enabled/disabled at runtime and sysctl_numa_balancing_mode & NUMA_BALANCING_MEMORY_TIERING is used to check it. In migrate_misplaced_folio(), the check is missing when PGPROMOTE_SUCCESS is incremented. Add the missing check. Link: https://lkml.kernel.org/r/20240724130115.793641-4-ziy@nvidia.com Fixes: 33024536bafd ("memory tiering: hot page selection with hint page fault latency") Reported-by: Kefeng Wang Closes: https://lore.kernel.org/linux-mm/f4ae2c9c-fe40-4807-bdb2-64cf2d716c1a@huawei.com/ Signed-off-by: Zi Yan Cc: Baolin Wang Cc: David Hildenbrand Cc: "Huang, Ying" Cc: Lorenzo Stoakes Signed-off-by: Andrew Morton --- mm/migrate.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/mm/migrate.c~memory-tiering-count-pgpromote_success-when-mem-tiering-is-enabled +++ a/mm/migrate.c @@ -2630,7 +2630,9 @@ int migrate_misplaced_folio(struct folio putback_movable_pages(&migratepages); if (nr_succeeded) { count_vm_numa_events(NUMA_PAGE_MIGRATE, nr_succeeded); - if (!node_is_toptier(folio_nid(folio)) && node_is_toptier(node)) + if ((sysctl_numa_balancing_mode & NUMA_BALANCING_MEMORY_TIERING) + && !node_is_toptier(folio_nid(folio)) + && node_is_toptier(node)) mod_node_page_state(pgdat, PGPROMOTE_SUCCESS, nr_succeeded); } _ Patches currently in -mm which might be from ziy@nvidia.com are memory-tiering-read-last_cpupid-correctly-in-do_huge_pmd_numa_page.patch memory-tiering-introduce-folio_use_access_time-check.patch memory-tiering-count-pgpromote_success-when-mem-tiering-is-enabled.patch